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Re: [RFI] Noise cancellers....

To: rfi@contesting.com
Subject: Re: [RFI] Noise cancellers....
From: Jerome Schatten <romers@shaw.ca>
Date: Sat, 22 Mar 2014 09:06:24 -0700
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
@Jim Brown..

What you say is of course true -- you can only kill one at a time. That said, you can often times choose your target, by adjusting the phasing. Getting rid of the most offensive noise source will usually allow you to be reasonably operational again -- my goal.
If you use two antennas that are both capable of good tx performance, 
then you have an additional weapon: switching the two antennas around. 
You can do this by installing a dpdt switch in the unit and doing a 
little rewiring.
The main PITA with cancellers is the time you spend getting the 
adjustments right.
Out Dammed Noise!

jerome - va7vv


On 14-03-21 11:20 PM, Jim Brown wrote:


[...]
Note that ANY noise canceller can only work on noise arriving from one 
direction at a time. If you have multiple sources, you can kill only 
one of them at a time.
73, Jim K9YC


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